4.17-stable review patch. If anyone has any objections, please let me know.
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From: Chen-Yu Tsai wens@csie.org
commit 384cf4285b34e08917e3e66603382f2b0c4f6e1b upstream.
The Lenovo LaVie Z laptop requires i8042 to be reset in order to consistently detect its Elantech touchpad. The nomux and kbdreset quirks are not sufficient.
It's possible the other LaVie Z models from NEC require this as well.
Cc: stable@vger.kernel.org Signed-off-by: Chen-Yu Tsai wens@csie.org Signed-off-by: Dmitry Torokhov dmitry.torokhov@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- drivers/input/serio/i8042-x86ia64io.h | 7 +++++++ 1 file changed, 7 insertions(+)
--- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -527,6 +527,13 @@ static const struct dmi_system_id __init DMI_MATCH(DMI_PRODUCT_NAME, "N24_25BU"), }, }, + { + /* Lenovo LaVie Z */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo LaVie Z"), + }, + }, { } };